fix: 降低函数体寄存器压力

2026-06-15 00:33:58 +08:00
parent 98cc47c212
commit fdaedc060b
6 changed files with 201 additions and 116 deletions
@@ -101,6 +101,13 @@ impl SymbolTable {
        Err(format!("Identifier '{name}' is not defined"))
    }

+    pub fn lookup_any(&self, name: &str) -> Option<u8> {
+        self.scopes
+            .iter()
+            .rev()
+            .find_map(|scope| scope.bindings.get(name).map(|binding| binding.reg))
+    }
+
    pub fn lookup_or_global(&mut self, name: &str, reg_for_new: u8) -> u8 {
        for scope in self.scopes.iter().rev() {
            if let Some(b) = scope.bindings.get(name) {